Vaulting From Doodling to Derring-Do

“My Lucky Star,” a spy-caper romance from China, is sweet and harmless, but it’s also a little disorienting. After watching it, you may need a few moments to remember which decade this is, because the film has the tone and silliness of a “Pink Panther” movie or an episode of the 1960s sitcom “Get Smart.”

Zhang Ziyi reprises her role as Sophie from the 2009 Chinese hit “Sophie’s Revenge,” playing an illustrator who daydreams about being in the adventures she draws but in reality is stuck in a bland life. Here, she is improbably caught up in the search for a stolen diamond, though not just any diamond. This one is huge and also has the power to be weaponized, becoming the fuel, essentially, for a device that can destroy a city.

The secret agent who sweeps her up into this adventure, David (Leehom Wang), is a dreamboat right out of one of her drawings, but Sophie proves to be rather inept at the espionage game, resulting in all sorts of madcap complications. The film has an American director, Dennie Gordon, and the humor has a quality American audiences will recognize. In one scene, the two leads escape from pursuers with a leap from a tall building as David deploys a parachute from out of nowhere.